CVE-2021-21620 Cross-Site Request Forgery in the Jenkins Claim plugin
Attackers can force users to change claims via CSRF, requiring Jenkins administrators to update the Claim Plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-21620?
CVE-2021-21620 is a medium-severity vulnerability in Jenkins Claim Plugin, published on 24 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A cross-site request forgery (CSRF) vulnerability in Jenkins Claim Plugin 2.18.1 and earlier allows attackers to change claims.
Weakness: CWE-352
Which versions are affected by CVE-2021-21620?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:claim. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:claim Maven | All versions | 2.18.2 |
org.jenkins-ci.plugins:claim Maven | All versions | 2.18.2 |
Products include Jenkins Claim.
How do I fix CVE-2021-21620?
Upgrade org.jenkins-ci.plugins:claim to 2.18.2 or later.
Is CVE-2021-21620 being exploited?
There is no known exploitation of CVE-2021-21620 in the wild and no public exploit code.
Other vulnerabilities in Jenkins Claim Plugin
Sources
Also known as GHSA-4ffq-6g62-j4v4.